1.福州大学 机械工程及自动化学院, 福建 福州 350116
李习科(1994— ),男,江西萍乡人,硕士研究生,主要研究方向为齿轮系统动力学。
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李习科,汪建,陈涛等.含耦合损伤的直齿轮传动系统振动特性分析[J].机械传动,XXXX,XX(XX):95-101.
Li Xike Wang Jian Chen Tao Zhang Jun.Vibration Characteristic Analysis of Spur Gear System with Coupled Damage[J].Journal of Mechanical Transmission,XXXX,XX(XX):95-101.
李习科,汪建,陈涛等.含耦合损伤的直齿轮传动系统振动特性分析[J].机械传动,XXXX,XX(XX):95-101. DOI: 10.16578/j.issn.1004.2539.2019.11.017.
Li Xike Wang Jian Chen Tao Zhang Jun.Vibration Characteristic Analysis of Spur Gear System with Coupled Damage[J].Journal of Mechanical Transmission,XXXX,XX(XX):95-101. DOI: 10.16578/j.issn.1004.2539.2019.11.017.
裂纹-磨损耦合损伤作为常见的齿轮失效形式,会显著改变齿轮传动系统的振动特性。为探明这一耦合损伤对传动系统振动特性的影响,建立计入裂纹与磨损效应的直齿轮传动系统动力学模型,并对其进行振动分析。首先,采用集中参数法建立直齿轮传动系统的非线性动力学模型,基于势能法分析齿根裂纹对齿轮副啮合刚度的影响;通过磨损仿真计算了齿轮副的综合磨损量,并将其引入到传动系统的位移激励。最后,采用龙格-库塔法求解传动系统的稳态动力学响应,分析裂纹-磨损耦合损伤模式下直齿轮系统的振动特性。结果表明,裂纹-磨损耦合损伤会诱发系统振动的幅值调制和频率调制,产生比单一损伤更为明显的啮合冲击。
As a conventional form of gear failure,crack-wear coupled damage dramatically changes the vibration characteristics of a gear transmission system .In order to verify the influences of the coupled damage on the vibration characteristics of the transmission system,a dynamics model of spur gear transmission system,in which included the effect of crack and wear,is established,and its vibration analysis is carried out. Firstly,the nonlinear dynamics model of spur gear transmission system is established by means of lumped parameter method,the influence of tooth crack on mesh stiffness of gear pair is analyzed based on potential energy method. The comprehensive quantity of tooth surface wear is calculated by wear simulation,and the tooth surface wear is being introduced to the displacement excitation of the transmission system. Then,the steady dynamics responses of the transmission system are solved by Runge-Kutta method,and the vibration characteristics of spur gear system with crack-wear coupled damage mode are analyzed. The results show that crack-wear coupled damage induce amplitude modulation and frequency modulation of the system vibration,and it will produce more obvious mesh impact than a single damage.
齿根裂纹 齿面磨损 耦合损伤 振动特性
Tooth root crackTooth surface wearCoupled damageVibration characteristic
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